Quick reference for when tokens expire and need renewing.
https://www.critchley.biz/google — completes in one browser visit; popit3 picks up the new token automatically on next run.
https://www.critchley.biz/outlook — device flow; copy the code, open Microsoft login, paste code. Page auto-updates when done.
See popit3/outlook-token-renewal for how the flow works and troubleshooting (e.g. blank popup caused by browser tracking protection).